Borrow some features from Obscuracam for Aperture
Basic info
Obscuracam from Guardian Project ( https://f-droid.org/packages/org.witness.sscphase1/ ) has some interesting privacy features such as "Cover faces with pixelate, redact (blackout) or funny nose and glasses", also "remove all identifying data stored in photos including GPS location data and phone make & model so you can save the protected photo back to the Gallery, or share it directly to Facebook, Twitter or any other "Share" enabled app"
Maybe we can borrow some of those features for CalyxOS's Aperture camera app, and pass the changes upstream to LineageOS, or: we can add it as an option for when sharing photos system-wide
Other ROMs with the same / similar feature (preferably open source)
ObscuraCam source : https://github.com/guardianproject/ObscuraCam